EP2467422B2 - Kautschuk-zusammensetzung mit hoher elastizität - Google Patents
Kautschuk-zusammensetzung mit hoher elastizität Download PDFInfo
- Publication number
- EP2467422B2 EP2467422B2 EP10739640.0A EP10739640A EP2467422B2 EP 2467422 B2 EP2467422 B2 EP 2467422B2 EP 10739640 A EP10739640 A EP 10739640A EP 2467422 B2 EP2467422 B2 EP 2467422B2
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- EP
- European Patent Office
- Prior art keywords
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- composition according
- liquid
- weight
- polybutadiene
- Prior art date
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- 229920001971 elastomer Polymers 0.000 title claims description 23
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- 239000007788 liquid Substances 0.000 claims description 32
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 24
- 229920002857 polybutadiene Polymers 0.000 claims description 20
- 238000004073 vulcanization Methods 0.000 claims description 17
- 239000005062 Polybutadiene Substances 0.000 claims description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 14
- 239000011787 zinc oxide Substances 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 10
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 8
- 238000001723 curing Methods 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- -1 alkaline earth metal carbonate Chemical class 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
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- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
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- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 5
- 150000002894 organic compounds Chemical class 0.000 claims description 4
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- AUMBZPPBWALQRO-UHFFFAOYSA-L zinc;n,n-dibenzylcarbamodithioate Chemical compound [Zn+2].C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1.C=1C=CC=CC=1CN(C(=S)[S-])CC1=CC=CC=C1 AUMBZPPBWALQRO-UHFFFAOYSA-L 0.000 description 6
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 description 5
- GIUBHMDTOCBOPA-UHFFFAOYSA-N 3h-1,3-benzothiazole-2-thione;zinc Chemical compound [Zn].C1=CC=C2SC(S)=NC2=C1 GIUBHMDTOCBOPA-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
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- 239000011347 resin Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
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- 239000002318 adhesion promoter Substances 0.000 description 3
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
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- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 description 2
- 150000001244 carboxylic acid anhydrides Chemical group 0.000 description 2
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- 238000005227 gel permeation chromatography Methods 0.000 description 2
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
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- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 229920000768 polyamine Polymers 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 150000003751 zinc Chemical class 0.000 description 2
- 150000005207 1,3-dihydroxybenzenes Chemical class 0.000 description 1
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- 229940054266 2-mercaptobenzothiazole Drugs 0.000 description 1
- IKEHOXWJQXIQAG-UHFFFAOYSA-N 2-tert-butyl-4-methylphenol Chemical compound CC1=CC=C(O)C(C(C)(C)C)=C1 IKEHOXWJQXIQAG-UHFFFAOYSA-N 0.000 description 1
- BTXXTMOWISPQSJ-UHFFFAOYSA-N 4,4,4-trifluorobutan-2-one Chemical class CC(=O)CC(F)(F)F BTXXTMOWISPQSJ-UHFFFAOYSA-N 0.000 description 1
- BQACOLQNOUYJCE-FYZZASKESA-N Abietic acid Natural products CC(C)C1=CC2=CC[C@]3(C)[C@](C)(CCC[C@@]3(C)C(=O)O)[C@H]2CC1 BQACOLQNOUYJCE-FYZZASKESA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical class [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004593 Epoxy Chemical group 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical class [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 description 1
- 125000003668 acetyloxy group Chemical group [H]C([H])([H])C(=O)O[*] 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000013466 adhesive and sealant Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
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- 230000003712 anti-aging effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- HHSPVTKDOHQBKF-UHFFFAOYSA-J calcium;magnesium;dicarbonate Chemical class [Mg+2].[Ca+2].[O-]C([O-])=O.[O-]C([O-])=O HHSPVTKDOHQBKF-UHFFFAOYSA-J 0.000 description 1
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- 238000004132 cross linking Methods 0.000 description 1
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- 150000001993 dienes Chemical class 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 239000012990 dithiocarbamate Substances 0.000 description 1
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- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
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- 235000010299 hexamethylene tetramine Nutrition 0.000 description 1
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- URMSIZAJUFVFFU-UHFFFAOYSA-N hydroxy-(6-hydroxysulfonothioyloxyhexoxy)-oxo-sulfanylidene-lambda6-sulfane Chemical compound OS(=O)(=S)OCCCCCCOS(O)(=O)=S URMSIZAJUFVFFU-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
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- DZCCLNYLUGNUKQ-UHFFFAOYSA-N n-(4-nitrosophenyl)hydroxylamine Chemical compound ONC1=CC=C(N=O)C=C1 DZCCLNYLUGNUKQ-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- AZQWKYJCGOJGHM-UHFFFAOYSA-N para-benzoquinone Natural products O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
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- 150000003505 terpenes Chemical class 0.000 description 1
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- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 150000003573 thiols Chemical group 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical class CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J109/00—Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/07—Aldehydes; Ketones
- C08K5/08—Quinones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/32—Compounds containing nitrogen bound to oxygen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/32—Compounds containing nitrogen bound to oxygen
- C08K5/33—Oximes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L13/00—Compositions of rubbers containing carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
- C08L2666/08—Homopolymers or copolymers according to C08L7/00 - C08L21/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31931—Polyene monomer-containing
Definitions
- the invention relates to one-component, thermosetting compositions based on liquid rubbers which have a plastisol-like flow behavior. They are suitable both as flanged seam adhesives and as flanged seam seals in the automotive body shop, which simplifies logistics and application technology.
- the invention further relates to a vehicle in which the flange seams are glued and / or sealed to the composition according to the invention after they have hardened.
- Plastisols are generally understood to mean dispersions of organic plastics in plasticizers, which gel when heated to a higher temperature and harden when cooled.
- the plastisols still used in practice today contain predominantly finely powdered polyvinyl chloride (PVC), which is dispersed in a liquid plasticizer and forms a paste.
- PVC polyvinyl chloride
- Such polyvinyl chloride plastisols are used for a wide variety of purposes. They are used, inter alia, as sealing compounds, for example for sealing seams in metal containers or as flanged seam adhesives in the metal industry and as corrosion protection coatings for metals (for example as underbody protection for motor vehicles).
- Plastisols based on finely powdered methacrylate copolymers (PMMA) or styrene copolymers have become known. Plastisols of this type, especially those based on PVC or PMMA, are also used extensively in car body construction, for example for lining stiffening structures such as engine hoods, trunk lids, doors and roof structures, as well as for flange seams and for sealing seams from other joining processes.
- PMMA finely powdered methacrylate copolymers
- styrene copolymers are also used extensively in car body construction, for example for lining stiffening structures such as engine hoods, trunk lids, doors and roof structures, as well as for flange seams and for sealing seams from other joining processes.
- the advantage of using plastisols for these purposes is their favorable flow behavior, especially at room temperature.
- these plastisol compositions are often gelled in a pre-gelation process to such an extent that their viscosity is high enough to ensure this laundry resistance and initial strength of the components .
- plastisol in the context of the invention relates exclusively to the rheological behavior and not to the composition of polymer powder (s) with plasticizer (s).
- compositions based on vulcanizable rubber mixtures have recently been increasingly proposed as alternative adhesives or sealants and sealing compounds.
- the EP-B-97394 describes an adhesive mixture based on a liquid polybutadiene rubber, powdered sulfur, organic accelerators and optionally solid rubber. It is known that such adhesives based on liquid polybutadienes can, by appropriate selection of the amount of sulfur and accelerators, achieve strength values which are equivalent to those of flexibilized epoxy adhesives. While these formulations have good hardening properties and good aging resistance and show reasonably useful adhesion even on normal oiled sheet steel, their applicability for the various galvanized steel sheets is unsatisfactory. In addition, the elongation at break of these high-strength rubber adhesives is very low. They cannot be injected and must be extruded at a higher temperature.
- DE-C-3834818 propose to use OH-terminated polybutadienes for the liquid rubber.
- the functional rubber polymer used can also be those with thiol, amino, amido, carboxyl, epoxy, isocyanate, anhydride or acetoxy groups, although the cured adhesive mixture has an elongation at break which Does not exceed 15%.
- the WO 96/23040 describes one-component, heat-curing structural adhesives based on liquid rubbers, which may optionally contain a proportion of functional groups, solid rubbers, thermoplastic polymer powders and sulfur and also vulcanization accelerators. These are suitable for gluing metal parts. Tensile shear strengths of over 15 MPa with a simultaneous high elongation at break of over 15% can be obtained. These adhesives are particularly suitable for use in body-in-white in the automotive industry.
- the rubber compositions of the aforementioned prior art are generally very suitable for their use in body-in-white in automobile production. They also have excellent properties in terms of laundry resistance, their aging resistance and the required technical properties.
- a major disadvantage of these rubber compounds, however, is their very high viscosity, so that they can generally only be applied warm and pumpable. They cannot be applied using conventional spray methods, such as the airless method.
- thermosetting rubber compositions which ameliorate this situation.
- This document relates to a thermosetting reactive composition based on natural and / or synthetic, liquid elastomers containing olefinic double bonds and vulcanizing agents, these compositions at least one liquid cis-1,4-polyisoprene with a molecular weight between 20,000 and 70,000 as well contain a vulcanization system consisting of sulfur, accelerators and quinone oximes.
- this composition can contain at least one further liquid polyene from the group consisting of 1,2-polybutadiene, 1,4-polybutadiene, polyisoprene, polybutene, polyisobutylene, copolymers of butadiene and / or isoprene with styrene and / or acrylonitrile, copolymers of acrylic acid esters with Dienes, wherein the molecular weight of the liquid polyene is in the range of 900 to about 40,000.
- the liquid polyene (s) can additionally have terminal and / or randomly distributed carboxyl groups, carboxylic acid anhydride groups, hydroxyl groups, amino groups, mercapto groups or epoxy groups as functional groups.
- compositions disclosed in this document generally do not achieve the high elasticity combined with high strength (in particular tensile shear strength) which is required for simultaneous use as a flanged seam adhesive and as a flanged seam sealer.
- the invention is based on the knowledge that the object of the invention can be achieved by selecting suitable components in certain quantity ranges which, at least with regard to component c), are outside the range in WO 2002/048255 disclosed quantity ranges.
- the weight average molecular weight (M w ) can be determined by means of gel permeation chromatography (GPC) using polystyrene as the standard.
- GPC gel permeation chromatography
- Quantities in% by weight always relate to the entire composition.
- polybutadiene c which is liquid at 22 ° C.
- 60 to 90% of the double bonds are preferably present as cis-1,4 double bonds.
- Its weight average molecular weight is preferably in the range of 1,500 to 3,000.
- the composition preferably additionally contains, as further component d), 0.5 to 3.5% by weight, based on the total composition, of stereospecific polybutadiene which is liquid at 22 ° C. and has a vinyl-1,2 content in the range from 40 to 60 % and with a weight average molecular weight in the range from 1500 to 3000.
- This component makes it easier to set the desired combination of properties after curing of the composition, which makes it suitable both as a flanged seam sealer and as a flanged seam adhesive.
- This polymer contributes in particular to the necessary strength of the composition.
- the adhesion of the composition according to the invention to metallic substrates is improved if it is used as further component e) 2 to 8% by weight, based on the total composition, of polybutadiene which is liquid at 22 ° C. and has carboxyl or carboxyl anhydride groups and a weight average molecular weight in the range contains from 1500 to 3000. This is therefore a preferred embodiment of the present invention. If necessary, additional tackifiers and / or adhesion promoters can be added.
- hydrocarbon resins for this purpose, for example, hydrocarbon resins, phenolic resins, terpene-phenolic resins, resorcinol resins or their derivatives, modified or unmodified resin acids or esters (abietic acid derivatives), polyamines, polyaminoamides, anhydrides and anhydride-containing copolymers are suitable.
- polyepoxy resins in small amounts can also improve the adhesion of some substrates. If tackifiers or adhesion promoters are used, their type and amount depends on the polymer composition and the substrate to which the composition is applied.
- Typical tackifying resins such as terpene phenolic resins or resin acid derivatives are used in concentrations between 5 and 20% by weight, typical adhesion promoters such as polyamines, polyaminoamides or phenolic resins or resorcinol derivatives are used in the range between 0.1 and 10% by weight.
- compositions according to the invention can optionally also contain finely divided thermoplastic polymer powders.
- suitable thermoplastic polymers are polypropylene, polyethylene, thermoplastic polyurethanes, methacrylate copolymers, styrene copolymers, polyvinyl chloride, polyvinyl acetal and, in particular, polyvinyl acetate and its copolymers such as, for example, ethylene-vinyl acetate copolymers.
- the particle size or particle size distribution of the polymer powder does not appear to be particularly critical, the mean particle size should be below 1 mm, preferably below 350 ⁇ m.
- the amount of any thermoplastic polymer powder added is between 0 and 20% by weight, preferably between 2 and 10% by weight.
- the crosslinking or curing reaction of the rubber composition has a decisive influence on the sealing function and the adhesive effect.
- the vulcanization system must therefore be selected and coordinated with particular care.
- the vulcanization system b) contains 6 to 10% by weight of sulfur and 0.25 to 20% by weight of vulcanization accelerator, based on the total composition. A large number of vulcanizing agents in combination with elemental sulfur are suitable for the vulcanization system.
- vulcanization systems based on elemental sulfur, zinc oxide and organic vulcanization accelerators, including organic zinc compounds, are very particularly preferred.
- the powdered sulfur is used in amounts of 6 to 10% by weight, based on the total composition. Quantities between 6 and 8% by weight are particularly preferably used.
- Suitable organic accelerators are dithiocarbamates (in the form of their ammonium or metal salts), xanthates, thiuram compounds (monosulfides and disulfides), thiazole compounds, aldehyde / amine accelerators (e.g. hexamethylenetetramine) and guanidine accelerators.
- MBTS Dibenzothiazyl disulfide
- MBT 2-mercaptobenzothiazole
- ZMBT zinc salt
- ZBEC diphenylguanidine and zinc dibenzyldithiocarbamate
- ZBEC zinc dibenzyldithiocarbamate
- particularly advantageous vulcanization properties and final properties of the cured rubber compositions are achieved when a combined vulcanization system of elemental sulfur and accelerator zinc compounds such as zinc salts of fatty acids, zinc dithiocarbamates, basic zinc carbonates and in particular finely divided zinc oxide is chosen.
- An accelerator system composed of zinc oxide, ZBEC and ZMBT is particularly preferred.
- the total content of zinc oxide and the organic compounds mentioned, in particular organic zinc compounds, is preferably in the range between 0.25 and 20% by weight.
- Zinc oxide is preferably used in amounts from 3 to 7% by weight, in particular from 3.5 to 6% by weight, ZBEC in amounts from 0.5 to 2% by weight, in particular from 0.7 to 1.5 % By weight, and ZMBT in amounts of 0.2 to 1% by weight, in particular 0.3 to 0.7% by weight, in each case based on the total composition.
- the composition according to the invention preferably contains fillers.
- the fillers can be selected from a variety of materials. In particular, chalks, natural or ground calcium carbonates, calcium-magnesium carbonates, silicates, talc, barite and carbon black or graphite should be mentioned here. It can possibly be expedient for at least some of the fillers to be surface-pretreated. In particular, with the various calcium carbonates or chalks, a coating with stearic acid has proven to be expedient to reduce the moisture introduced and to reduce the moisture sensitivity of the cured composition.
- the composition preferably contains 25 to 55% by weight, based on the total composition, of alkaline earth metal carbonate, preferably calcium carbonate (in particular in the form of chalk), which can be partially coated with fatty acid.
- compositions according to the invention can also contain up to 8% by weight, preferably between 3 and 5% by weight, based on the total composition, of calcium oxide in order to further reduce the moisture sensitivity.
- composition according to the invention preferably contains zinc oxide, amounts of up to 8% by weight in total, based on the total composition, preferably 2 to 6% by weight of zinc oxide, being particularly preferred.
- a combination of calcium oxide and zinc oxide as components of the compositions according to the invention is likewise preferred.
- composition according to the invention preferably contains, based on the entire composition, a total of up to 12% by weight, preferably 5 to 9% by weight, carbon black and / or graphite.
- the compositions contain, based on the total composition, up to 5% by weight of silica, preferably 0.5 to 3% by weight of silica. In the context of this embodiment it has proven to be particularly advantageous if finely divided silica, preferably with an average particle size of less than 100 nm, is used.
- compositions according to the invention contain a combination of calcium oxide, calcium carbonate and graphite.
- the compositions according to the invention particularly advantageously contain a combination of calcium oxide, zinc oxide, calcium carbonate and graphite. It is very particularly preferred if the compositions according to the invention contain calcium oxide, zinc oxide, calcium carbonate, silica and graphite.
- the composition does not contain more than 10% by weight, preferably not more than 5% by weight and in particular not more than 2% by weight 22 ° C contains liquid organic compounds (such as extender oils, white oil or plasticizers) that are not chemically integrated into the polymer network during the hardening reaction. It is particularly preferred not to contain more than 0.5% by weight and in particular no such compounds.
- liquid organic compounds such as extender oils, white oil or plasticizers
- stabilizers or anti-aging agents such as sterically hindered phenols or amine derivatives, can be used to counter the thermal, thermo-oxidative or ozone degradation of the compositions according to the invention; typical quantity ranges for these stabilizers are 0.1 to 5% by weight.
- compositions according to the invention are distinguished by the absence of solid rubber.
- Solid rubbers are known to have molecular weights above 100,000.
- This has a positive effect on the rheological behavior and the mechanical properties after setting.
- the absence of solid rubber facilitates production, since no kneader has to be used as a mixer for miastification. Simple dispersers, plant mixers or beam mixers are sufficient.
- compositions according to the invention are suitable at the same time both as a flanged seam sealer and as a flanged seam adhesive.
- a further aspect of the present invention therefore lies in the use of a composition according to the invention as a flanged seam sealer, in particular in vehicle construction, and a further aspect in the use of a composition according to the invention as a flanged seam adhesive, in particular in vehicle construction.
- the composition according to the invention is used at the same time both as a flanged seam sealer and as a flanged seam adhesive.
- a further aspect of the invention therefore resides in a vehicle in which flanged seams are glued and / or sealed with a composition according to the invention after they have cured, in particular are both glued and sealed.
- the rubber-based products described above Compared to the state of the art, i.e. rubber-based products with plastisol-like flow behavior, the rubber-based products described above have a very high elasticity (> 130%) combined with high strength (tensile shear strength> 4 MPa). In addition, the good aging resistance is a great advantage over PVC and / or PMMA plastisols.
- the formulations V1 and V2 represent comparative examples for a flanged seam seal or a flanged seam adhesive.
- the high elongation at break compared to the comparative examples with simultaneously high tear strength and tensile shear strength of the inventive formulations E1 to E8, which make the cured material suitable both as a flanged seam adhesive and as a flanged seam sealer .
- illustration 1 shows the test specimen used for measuring the tear test (dimensions in mm).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009028607A DE102009028607A1 (de) | 2009-08-18 | 2009-08-18 | Kautschuk-Zusammensetzung mit hoher Elastizität |
PCT/EP2010/061484 WO2011020714A1 (de) | 2009-08-18 | 2010-08-06 | Kautschuk-zusammensetzung mit hoher elastizität |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2467422A1 EP2467422A1 (de) | 2012-06-27 |
EP2467422B1 EP2467422B1 (de) | 2014-01-22 |
EP2467422B2 true EP2467422B2 (de) | 2021-10-20 |
Family
ID=42562975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10739640.0A Active EP2467422B2 (de) | 2009-08-18 | 2010-08-06 | Kautschuk-zusammensetzung mit hoher elastizität |
Country Status (6)
Country | Link |
---|---|
US (1) | US8415418B2 (zh) |
EP (1) | EP2467422B2 (zh) |
JP (1) | JP5629320B2 (zh) |
CN (1) | CN102471529B (zh) |
DE (1) | DE102009028607A1 (zh) |
WO (1) | WO2011020714A1 (zh) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013226505A1 (de) * | 2013-12-18 | 2015-06-18 | Henkel Ag & Co. Kgaa | Hitzehärtbare Kautschuk-Zusammensetzungen mit plastisol-artigem Fließverhalten |
JP6655285B2 (ja) | 2014-12-12 | 2020-02-26 | ヘンケルジャパン株式会社 | 低温にて衝撃耐久性を有する制振性付与組成物 |
DE102015219234A1 (de) * | 2015-10-06 | 2017-04-06 | Continental Automotive Gmbh | Dichtmasse und Verwendung einer solchen, Gehäuse und Verfahren zur Herstellung eines solchen |
DE102016220237A1 (de) | 2016-10-17 | 2018-04-19 | Tesa Se | Verfahren zur Herstellung einer versiegelten Falzverbindung |
DE102017206086A1 (de) * | 2017-04-10 | 2018-10-11 | Contitech Ag | Kautschukmischung und elastomerer Artikel mit verbesserter Haftung |
JP7193795B2 (ja) * | 2017-07-14 | 2022-12-21 | 兵庫県 | 熱溶解積層法による三次元造形プリンタ用の未加硫ゴム組成物、未加硫ゴム組成物を造形原料とする三次元造形物の製造方法 |
DE102018213824A1 (de) | 2018-08-16 | 2020-02-20 | Tesa Se | Verfahren zur Herstellung einer versiegelten Falzverbindung |
US11214676B2 (en) * | 2019-04-05 | 2022-01-04 | Fina Technology, Inc. | Polyenes for curable liquid rubber-based compositions |
EP3789447A1 (de) * | 2019-09-05 | 2021-03-10 | Henkel AG & Co. KGaA | Vernetzungsmittel für polymere systeme |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53138449A (en) * | 1977-05-10 | 1978-12-02 | Kuraray Co Ltd | Liquid rubber composition |
GB2123018B (en) | 1982-06-17 | 1986-02-05 | Evode Ltd | Liquid polybutadiene containing adhesive sealant compositions |
DE3834818C1 (zh) | 1988-10-13 | 1989-11-09 | Teroson Gmbh, 6900 Heidelberg, De | |
ATE105853T1 (de) | 1990-02-05 | 1994-06-15 | Ppg Industries Inc | Härtbarer strukturklebstoff auf kautschukbasis. |
US5256738A (en) | 1990-02-05 | 1993-10-26 | Ppg Industries, Inc. | Functional rubber-based structural adhesive compositions |
DE19502381A1 (de) | 1995-01-26 | 1996-08-01 | Teroson Gmbh | Strukturelle Rohbauklebstoffe auf Kautschukbasis |
DE10062860A1 (de) * | 2000-12-16 | 2002-06-27 | Henkel Teroson Gmbh | Kautschuk-Zusammensetzungen mit plastisolartigem Fliessverhalten |
DE10062859A1 (de) * | 2000-12-16 | 2002-06-27 | Henkel Teroson Gmbh | Mehrschichtige Verbundmaterialien mit organischen Zwischenschichten auf Kautschukbasis |
DE102006014190A1 (de) * | 2006-03-24 | 2007-09-27 | Henkel Kgaa | Hochfeste schlagschälfeste Klebstoffe |
DE102006016577A1 (de) * | 2006-04-06 | 2007-10-11 | Henkel Kgaa | Kleb-/Dichtstoffe auf Basis von Flüssigkautschuken |
DE102007029644A1 (de) * | 2007-06-26 | 2009-01-08 | Henkel Ag & Co. Kgaa | Einkomponentige, heißhärtende reaktive Zusammensetzung |
-
2009
- 2009-08-18 DE DE102009028607A patent/DE102009028607A1/de not_active Withdrawn
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2010
- 2010-08-06 EP EP10739640.0A patent/EP2467422B2/de active Active
- 2010-08-06 WO PCT/EP2010/061484 patent/WO2011020714A1/de active Application Filing
- 2010-08-06 CN CN201080036250.0A patent/CN102471529B/zh active Active
- 2010-08-06 JP JP2012525120A patent/JP5629320B2/ja active Active
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2012
- 2012-02-17 US US13/399,401 patent/US8415418B2/en active Active
Also Published As
Publication number | Publication date |
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JP2013502471A (ja) | 2013-01-24 |
EP2467422A1 (de) | 2012-06-27 |
CN102471529A (zh) | 2012-05-23 |
WO2011020714A1 (de) | 2011-02-24 |
DE102009028607A1 (de) | 2011-02-24 |
CN102471529B (zh) | 2014-03-12 |
EP2467422B1 (de) | 2014-01-22 |
JP5629320B2 (ja) | 2014-11-19 |
US8415418B2 (en) | 2013-04-09 |
US20120148856A1 (en) | 2012-06-14 |
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